1、请求添加这一行
contentType: "application/x-www-form-urlencoded",
示例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>显示小区信息</title>
<script src="http://47.94.33.88/js/jquery-3.5.1.js"></script>
<script src="http://47.94.33.88/js/vue.js"></script></head>
<body>
<div id="app">
<input v-model="username" class="money"></input></div>
<script>
const header = new Vue({
el: '#app',
data: {
'username': ""
},
created: function () {
var that = this;
$.ajax({
contentType: "application/x-www-form-urlencoded",
url: "http://47.94.33.88/ajax/ajax.php",
type: 'POST',
data: {
'usrename': that.username
},
success: function (data) {
var json = JSON.parse(data);
that.username = json;
}
})
}
})</script>
</body>
</html>
2、php页面
添加这一行，如果是PHP网站，则在入口处添加些即可。
header(‘Access-Control-Allow-Origin: *’);
<?php
header('Access-Control-Allow-Origin: *');
echo json_encode("hello");
?>
